使用 Terraform 远程执行运行简单的 Web 服务器

Question

# example.tf
provider "aws" {
region = "us-east-1"
}
resource "aws_instance" "example" {
ami             = "ami-0d44833027c1a3297"
instance_type   = "t2.micro"
security_groups = ["${aws_security_group.example.name}"]
key_name        = "${aws_key_pair.generated_key.key_name}"
provisioner "remote-exec" {
inline = [
"cd /home/ubuntu/",
"nohup python3 -m http.server 8080 &",
]
connection {
type        = "ssh"
private_key = "${tls_private_key.example.private_key_pem}"
user        = "ubuntu"
timeout     = "1m"
}
}
}
resource "tls_private_key" "example" {
algorithm = "RSA"
rsa_bits  = 4096
}
resource "aws_key_pair" "generated_key" {
key_name   = "example_key_pair"
public_key = "${tls_private_key.example.public_key_openssh}"
}
resource "aws_security_group" "example" {
name        = "grant ssh"
description = "grant ssh"
ingress {
from_port   = 22
to_port     = 22
protocol    = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port   = 8080
to_port     = 8080
protocol    = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port   = 0
to_port     = 0
protocol    = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}

ami-0d44833027c1a3297是一个带有hello world索引的ubuntu AMI.html位于/home/ubuntu/

虽然，我没有收到任何错误并且 ec2 实例已启动并正在运行，但 http 服务器无法运行。

注意：如果我手动 ssh 并在内联部分中应用同一组命令，我能够成功运行 http 服务器。任何帮助将不胜感激！

Answer 1

修复：

inline = [
....
"sleep 20",
]

我相信配置器在服务器进程开始之前退出(竞争条件(，因此睡眠是必要的。

注意：从Hashicorp Packer文档中得到了睡眠的想法(https://www.packer.io/docs/provisioners/shell.html(